Finding the Fourth Proportional to 72,281.94, 99,844.38 and 55,493.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,281.94 : 99,844.38 = 55,493.61 : x
2. Step 2: Convert to fraction form
   72,281.94/99,844.38 = 55,493.61/x
3. Step 3: Cross multiply
   72,281.94x = 99,844.38 × 55,493.61
4. Step 4: Simplify right side
   72,281.94x = 5,540,725,084.41
5. Step 5: Solve for x
   x = 5,540,725,084.41/72,281.94
6. Step 6: Final answer
   x = 76,654.35